Thromboembolic safety of norethisterone vs levonorgestrel in combined oral contraceptive users: a pooled analysis of 4 large prospective cohort studiesAJOG Global Reports at a Glance

• Main Authors: Clare Barnett, MBBS (Hons) (Author), Anja Bauerfeind, PhD (Author), Sophia Von Stockum, PhD (Author), Klaas Heinemann, MD, PhD, MSc, MBA (Author)
• Format: Book
• Published: Elsevier, 2022-02-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

BACKGROUND: Norethisterone (acetate) and levonorgestrel are marketed globally as components of combined oral contraceptives. Although guidelines recommend both as first-line combined oral contraceptives, no direct, comparative safety studies are available. OBJECTIVE: We directly compared the thrombo...